ligule

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ligule

a small, scale-like outgrowth from a leaf, found in club mosses and some grasses.
References in periodicals archive ?
Further, in subsequent segments the dorsal cirri are barely longer than the upper notopodial ligules, whereas in N.
For example, the large size of its ligules may be used as a landing platform for floral visitors with a range of sizes (Leppik, 1977).
Leaves 5-11, basal; blades 9-32 cm long, 2.6-5.2 mm wide, ascending, membranaceous, flattish, glabrous, the margins antrorsely scabrous, terminating in a scabrate attenuated tip; inner band of leaf sheaths hyaline or pale brown, glabrous, apex concave; ligules 2-3.5 mm long, acute.
aureum (C4) had large involucel bracts, which were ovate or circular, and large cauline leaves, amplexicaul at base, cordate or with large ligules. It is for the first time that species from the Sinkiang area have been studied in genetic analysis, although there are many Bupleurum species being investigated (Neves and Watson, 2004).
Ligules are short pointed membranes averaging 0.8 mm in length.
The populations studied were verified to be Nereis acuminata [or its synonyms (Day 1973) Nereis (Neanthes) arenaceodentata, and Nereis (Neanthes) caudata] based on morphology of denticles, setae, ligules, cirri, and head shape (Ehlers 1868; Moore 1903; Pettibone 1963; Day 1973).
Diagnosis: The prostomium is split anteriorly and the notopodial ligules are well developed anteriorly but reduced in posterior segments.
Expanded leaves were measured from their ligules, expanding leaves from the ligule of the last fully expanded leaf, and the measure of senescent leaves considered only the green portion of the leaf blade.
Collars can contain appendages such as auricles and ligules.
Leaves 3-9; blades 4-16(-23) cm long, (0.7-)1-3.4 mm wide, flattish or channelled (at least proximally), glabrous, margins with unbranched and 2-branched prickle hairs, the unbranched ones antrorse or retrorse; inner band of leaf sheaths white-hyaline or pale brown, glabrous, the apex slightly concave; ligules 0.5-1.5 mm long, more or less rounded.